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3402.31.10.00/Calcium Dodecylbenzene Sulfonate/Japan

Calcium Dodecylbenzene Sulfonate from Japan

Calcium salt form used as corrosion inhibitor in lubricants and overbased detergents. Still classifies as anionic surfactant under 3402.31.10.00 despite end-use. Meets surface activity tests.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Specify TBN (total base number) if overbased variety

• Separate from petroleum sulfonates via origin certificates